This note presents estimates of the impacts of alternative climate change scenarios on poverty and child mortality in Sub-Saharan African and South Asia. As with any long-term projections, simplifying assumptions are used, and the outcome of the analysis should be seen as illustrative only. Two main scenarios are considered: • A baseline-climate-change scenario, in which global mean temperature increases to 3.9°C above pre-industrial levels by 2100; • A high-climate-change scenario, in which global mean temperature increases to 4.3°C above pre-industrial levels by 2100.